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> L-jet with a 2200 or 2258, Has it or can it be done?
JamesJ
post Dec 9 2023, 10:51 AM
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Hello World,
Has anyone successfully been able to pair(dial in) a modified 914 L-jet system with a 2200 or 2258?
I am looking into doing this for my street car and am aware that the AFM will need to be modified. I have a 52mm throttle body with a modified throttle actuator so the operating arm will work with the L-jet and will fit the stock plenum seal.
Will I need bigger fuel injectors than my new 2.0 injectors? If so, which ones?
What else do I need?
I did a Google search using key words, but was not able to find any previous threads on this topic.
Any advice or thoughts would be appreciated.

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porschetub
post Dec 9 2023, 04:18 PM
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QUOTE(JamesJ @ Dec 10 2023, 04:51 AM) *

Hello World,
Has anyone successfully been able to pair(dial in) a modified 914 L-jet system with a 2200 or 2258?
I am looking into doing this for my street car and am aware that the AFM will need to be modified. I have a 52mm throttle body with a modified throttle actuator so the operating arm will work with the L-jet and will fit the stock plenum seal.
Will I need bigger fuel injectors than my new 2.0 injectors? If so, which ones?
What else do I need?
I did a Google search using key words, but was not able to find any previous threads on this topic.
Any advice or thoughts would be appreciated.

That should be a great combo,go to the larger motor and get the most from the larger throttle body ,L-jet can be run on larger capacity motors because the AFM is controlled by airflow and will self adapt to the volume of air working the air gate .
Never heard of any modification you can do to them for flow and it's not required,if you have a good AFM don't mess with it , the only one I ever adjusted was to correct " rolling idle" caused by a "hot " street cam in a Golf 2.0 engine I built running cam chip .
Pretty certain stock injectors will cover your needs .
I recently fitted a 2.0 16V to replace worn out 1.8 16V in my VW Corrado ,I just swapped the old K-jet system from the 1.8 to the 2.0 and it runs and drives very well this system is controlled by airflow also but is full mechanical with a small basic ignition computer however base principal is the same as L-jet .
What cam are planning to run ? , believe this would need to be reasonably mild to avoid rough idle which the AFM won't play well with .
The sum of all parts in good condition ,the right cam and exhaust should yield a strong motor with good torque , there are most likely some that have done this conversion and can correct me ?,cheers.
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Posts in this topic
JamesJ   L-jet with a 2200 or 2258   Dec 9 2023, 10:51 AM
Root_Werks   I did a 2.0 L-Jet that worked very well. Would thi...   Dec 9 2023, 11:15 AM
Dave_Darling   You might check to see what other ~2.2 liter 4-cyl...   Dec 9 2023, 12:57 PM
Superhawk996   In this day and age - Microsquirt. Not the answe...   Dec 9 2023, 01:07 PM
Geezer914   Enlarge the plenum opening for the throttle body u...   Dec 9 2023, 01:24 PM
porschetub   Enlarge the plenum opening for the throttle body ...   Dec 9 2023, 09:40 PM
Montreal914   Also a lot of engine/FI info on shoptalkforum.com ...   Dec 9 2023, 01:31 PM
914werke   Probably the displacement will have less impact th...   Dec 9 2023, 03:44 PM
porschetub   Hello World, Has anyone successfully been able to...   Dec 9 2023, 04:18 PM
Geezer914   I am running a 50 mm Vanagon throttle body on my 2...   Dec 10 2023, 06:20 AM
porschetub   I am running a 50 mm Vanagon throttle body on my ...   Dec 11 2023, 01:55 PM
Geezer914   I am running a 50 mm Vanagon throttle body on my...   Dec 12 2023, 10:28 AM
VaccaRabite   IMO - why bother?! L-jet is archaic. It uses...   Dec 11 2023, 11:52 AM
VaccaRabite   The biggest throttle body you can easily run is th...   Dec 11 2023, 03:52 PM
JamesJ   Thank you all for your replies...keep them coming,...   Dec 12 2023, 12:01 AM
JmuRiz   You need something like this... https://youtu.be/K...   Dec 12 2023, 08:34 AM
914_teener   What's your budget? You'll start running ...   Dec 12 2023, 12:03 PM
VaccaRabite   What's your budget? You'll start running...   Dec 12 2023, 01:48 PM


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